Fast food worker

Many fast food workers aren't feeling so good about handing you those greasy burgers and fries. In a survey conducted by PayScale that asked employees, 'Does your job make the world a better place?," 38.4% of fast food workers said their job was actually making the world a worse place.

That's the highest percentage for any of the jobs included in the survey and is well above the average of less than 1% across all jobs.

Why are fast food workers feeling so low? It's likely that some workers feel as if they are contributing to the country's worsening obesity epidemic, said Katie Bardaro, lead economist at PayScale. "A lot of fast food isn't healthy for you, and [fast food workers] are continuing to feed it to people even though they know that it's not," she said.